Evaluate the expression.
a3b2c-1d
evaluate a2b2c1d
if a = 2, b = 4, c = 10, d = 15
express your answer
as a reduced fraction.

3/4 if meant

is

Step-by-step explanation:

So the expression we want to evaluate for

is

Please make sure I typed the expression and the values for the letters right.

Plug in the given values:

In the following step I said 2^3 equals 8 because 2^3 means 2*2*2.  I also got rid of the negative exponents by taking reciprocal.

In the following step I said 4^2=16 because 4^2 means 4*4.  I also wrote 10^1 as 10.

In the following step, I'm going to rewrite everything as a fraction if it isn't already a fraction.  8=8/1 and 15=15/1.

To multiply fractions, you just multiply straight across on top and straight across on bottom.

Actually performing the multiplication:

Time to reduce:

I divided top and bottom by 10 to get this.

One more time for reducing:

I divided top and bottom by 4 to get this.

d is correct

step-by-step explanation: